3D Digital Patching Using Height-Map of Broken Surface

Considering the facts that all the current 3D patching algorithms use curves of fragment as match features and there is no algorithm takes full advantage of 3D shape features, this paper proposes 3D digital patching method based on height-map of fragment’s broken surface. The 3D data of fragment’s surface is segmented based on region dilation strategy firstly. Then the broken regions are determined via surface coarseness. The global-best patching scheme is achieved by employing height-map as matching feature and complementariness between height-map as matching performance functional. The performance of proposed method is finally verified by simulation tests.